High Power-Efficiency, Low DMG Cladding-Pumped Few-Mode Er/Yb/P Co-Doped Fiber Amplifier for Mode Division Multiplexing

被引：13

作者：

Qiu, Qiang ^{[1
]}

Gu, Zhimu ^{[1
]}

He, Le ^{[1
]}

Chen, Yang ^{[1
]}

Lou, Yang ^{[1
]}

Zhao, Xinyue ^{[1
]}

Yin, Xiaoke ^{[1
]}

Li, Wenzhen ^{[1
]}

Liu, Shaokun ^{[1
]}

Peng, Jinggang ^{[1
]}

Li, Haiqing ^{[1
]}

Xing, Yingbin ^{[1
]}

Chu, Yingbo ^{[1
]}

Dai, Nengli ^{[1
]}

Li, Jinyan ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan 430074, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2022年 / 40卷 / 22期

基金：

中国国家自然科学基金;

关键词：

Optical fiber amplifiers; Optical fiber communication; Absorption; Ions; Erbium; Claddings; Refractive index; Differential modal gain; few-mode Er; Yb; P co-doped fiber amplifier; fiber optics; space-division multiplexing; EDFA;

D O I：

10.1109/JLT.2022.3202686

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Mode division multiplexing (MDM) is considered to be an efficient solution to alleviate the exponentially increasing "capacity crunch". Here, we numerically and experimentally demonstrate a high power-efficiency, low differential mode gain (DMG) few-mode amplifier based on an M-type double-cladding Er/Yb co-doped phosphosilicate fiber. With a large-signal power of 4.1 dBm, the average DMG of <1.5 dB and the maximum gain of >28 dB were achieved for the LP01, LP11, LP21, and LP02 mode groups over the 1535-1565 nm range. Additionally, the saturation output power was measured in excess of 35 dBm, with a pump conversion efficiency (PCE) of >31%. This cladding-pumped few-mode Er/Yb co-doped fiber amplifier enables combined mode-division and wavelength-division multiplexed over large-capacity long-haul MDM transmission.

引用

页码：7421 / 7430

页数：10

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